Reproduction of Amblystoma

Bio-Electric Correlates of Development in Amblystoma *

Relations of Symmetry in the Developing Ear of Amblystoma Punctatum.

Abramowitz, A. A., "Regeneration of Chromatophore Nerves," Proc. Nat. Acad. Sci., 21, 137-141 (1935). Mills, S. M., "The Double Innervation of Fish Melanophores," Jour. Exp. Zool., 64, 231-244 (1932). Smith, D. C., "The Action of Certain Autonomic Drugs upon the Pigmentary Responses of Fundulus," Ibid., 58, 423-453 (1931). Wyman, L. C., "Blood and Nerve as Controlling Agents in the Movements of...

The Sarcoplasmic Reticulum in Muscle Cells of Amblystoma Larvae

Electron microscopy of thin sections of muscle fibers in myotomes of Amblystoma larvae has revealed the presence of a complex, membrane-limited system of canaliculi and vesicles which form a lace-like reticulum around and among the myofibrils. This seems to correspond to the sarcoplasmic reticulum of the earlier light microscopists and the endoplasmic reticulum of other cell types. The elements...

Steady State Potential Differences in the Early Development of Amblystoma *

The development of instruments and technics in recent years has made possible considerable increase in our information concerning electrical phenomena associated with living organisms. Though still little studied, this is true of those bioelectric phenomena, noted by DuBois-Reymond in the frog skin in 1843, which maintain a relatively steady state and change only slowly, as well as of those bet...

Reproduction characteristics of the Vimba vimba persa

Some reproduction characteristics of the Caspian Vimba, Vimba vimba persa, were studied from Oct. 2008 to Sep. 2009 in coastal waters of the Caspian Sea (Mazandaran province). 994 specimens were monthly collected from 6 fish landing sites of Ramsar, Tonekabon, Chalus, Mahmood Abad, Sari and Behshahr. The fecundity was measured using 92 specimens. This species was found to have more abundance in...